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प्रश्न
The property of splitting of white light into its seven constituent colours is known as
विकल्प
rectilinear propagation
refraction
reflection
dispersion
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उत्तर
dispersion
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संबंधित प्रश्न
A student traces the path of a ray of light through a triangular glass prism for different values of angle of incidence. On analyzing the ray diagrams, which one of the following conclusions is he likely to draw?
(A) The emergent ray is parallel to the incident ray.
(B) The emergent ray bends at an angle to the direction of the incident ray.
(C) The emergent ray and the refracted ray are at right angles to each other.
(D) The emergent ray is perpendicular to the incident ray.
Study the following diagrams in which the path of a ray of light passing through a glass prism as traced by four students P, Q, R and S is shown:
The student who has traced the path correctly is
(A) P
(B) Q
(C) R
(D) S
In the following diagram the correctly marked angles are :
(a) ∠A and ∠e
(b) ∠i, ∠A and ∠D
(c) ∠A ∠r and ∠e
(b) ∠A ∠r and ∠D
What happens when a ray of ordinary light is passed through a triangular glass prism?
Which is refracted most by a prism : red light or violet light? Explain why?
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
State the speed of light in (a) air, (b) water, and (c) glass
Out of air and glass, which is optically rarer? Give reason.
Differentiate between a glass slab and a glass prism.
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
